columnize

columnize

Like column -t, but right justifies columns that are all numbers.

Usage

This program reads from the files specified on the command line after all the flags have been processed, or will read from standard input when no files are specified. The following two invocations will have the same effect:

$ columnize < sample.txt
$ columnize sample.txt

However, more than a single file can be provided on the command line:

$ columnize benchmarks-a.out benchmarks-b.out

By default this program inspects fields on every line to determine max field width and whether the field is numerical. By default numerical fields are right justified and non-numerical fields are left justified.

Skip Header

When the -s command line option is provided this program still uses the first line of input for column width determination, but ignores the fields in the first line when determining whether the column is numerical.

Left Justify

When the -l command line option is provided, all columns will be left justified.

columnize -l input.txt

Right Justify

When the -r command line option is provided, all columns will be right justified.

columnize -r input.txt

Specifying a Delimiter

By default this program splits each line by whitespace. When the -d S command line option is given, it uses the provided string as the field delimiter. S may be a string of multiple characters.

columnize -d : input.txt

Installation

If you don't have the Go programming language installed, then you'll need to install a copy from https://golang.org/dl.

Once you have Go installed:

go get github.com/karrick/columnize